Auras have sort of gone out of style in recent years, but this is pretty much as good as they get, besides the ones that give you +1/+1 for each creature or land you control. That this card makes the enchanted creature an Angel in addition to its other types is actually sort of interesting. It adds great flavor to the card and certainly doesn’t hurt anything. This will make casual players with Angel tribal decks quite happy. It’s a very good card that’s certainly worth its mana cost. Best of all, when the enchanted creature dies, you get this back to your hand.
I can see this actually being good. I don’t know how popular it will be in Standard, but it can win you games in sealed and draft. It’s very difficult to stop a flyer that has first strike in a format where removal is limited, especially one that’s being buffed in both power and toughness by FOUR. I like this card, and no doubt it’s going to be played in EDH/Commander. If it’s the “worst” mythic rare in the set, then I’m pretty happy.